Data binding generic variable

Question

How to define a generic type of a data binding variable?

The following code never compiles.

<data>     <variable         name="viewModel"         type="com.example.viewmodel.ViewModel<Model>"/> </data> 

Answer 1

You need to escape <Model> as shown below:

<data>     <variable         name="viewModel"         type="com.example.viewmodel.ViewModel&lt;Model>"/> </data> 

Android Studio will still show a "Cannot resolve symbol" error, but the XML will compile. It is a known issue. From Android Studio Support for Data Binding:

Note: Arrays and generic types, such as the Observable class, might display errors when there are no errors.

Answer 2

Try this one:

<data> <variable     name="viewModel"     type="com.example.viewmodel.ViewModel&lt;Model&gt;"/> </data> 

< is responsible for < and > is responsible for >.